In which pair of compounds should the first member be more covalent than the secondmember?(A) TICI, TICIz(B) SnIg, SnFa(C) LiF, BF3(D) SnFA, CF4

Formation. Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material

Answer:

It appears to be

Explanation:

I did that question.

Carbocyclic compounds are compounds that have form a carbon atom rings.

Carbocyclic compounds e.g. aromatic or non-aromatic cyclic carbon compounds are those compound that have a carbon ring attached or enclosed to them. A good example of organic compound freely occurring in nature are of this form. The main parent of these compounds are either benzene of cyclohexane or cyclohexene.

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Answer:

A conduct heat

Explanation:

because in cooking burners on stove will conduct heat energy to the bottom of the pan sitting on top of it. From there, the pan conducts heats to it content.

Answer:

Pressure on Surface A > Pressure on Surface B

Explanation:

Pressu

re on Surface B > Pressure on Surface A

The correct answer is: Trial 1 (expA) and Trial 2 (expB).

The rate at which a chemical reaction occurs is known as the reaction rate. It is described as the shift in a reactant or product's concentration over time. The rate of a chemical reaction depends on several factors, including the concentration of reactants, temperature, pressure, and the presence of catalysts or inhibitors.

To study the impact of the initial concentration of Y on the reaction rate, we need to select two experiments with the same initial concentrations of reactants except for Y. This will allow us to compare the effect of changing the initial concentration of Y while keeping other factors constant.

Looking at the table, we can see that the initial concentrations of reactants in Trials 1 and 2 are the same, while the initial concentration of Y is different. Therefore, we can use these two trials as experiment A (expA) and experiment B (expB) to study the impact of the initial concentration of Y.

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Answer:

23

Explanation:

we do not care about electrons, so 11 + 12 = 23

The frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

The frequency and wavelength of a wave are related by the following equation:

λf = c

Where λ is the wavelength of the wave in meters, f is the frequency in Hertz, and c is the speed of light in a vacuum.

in this case, λ = 676 nm = 6.76 x \(10^{-7\) m

c = 299,792,458 m/s

Making f the subject of the formula:

f = c/λ

  = 299,792,458/6.76 x \(10^{-7\)

  = 4.43 x \(10^{14\) hertz

In other words, the frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

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There are different types of reactions which are classified based on the mode of regrouping of atoms between the reactants. Some of the reaction types are synthesis, decomposition, displacement etc.

There are different types of reaction based on the regrouping of atoms to form a new product. Some of them are described below:

Synthesis reactions:

This type of reactions involves combination of two reactants to produce a single product as follows:

A + B →C

Decomposition reactions:

Decomposition of a compound into its constituent elements or compounds as written below:

AB₂ → A + 2B

Displacement reaction:

In displacement reactions, one or two group of the reactants are displacing each other.

AB + CD → AC + BD - double displacement

AB + C → AC + B - single displacement.

Combustion reaction:

This reaction is the reaction with oxygen forming carbon dioxide and water.

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The mole ratio of methane to water in a reaction depends on the balanced chemical equation representing the reaction. Without specific information about the reaction, it is not possible to determine the exact mole ratio.

In a balanced chemical equation, the coefficients in front of the reactants and products represent the mole ratios between them. For example, if the balanced equation is:

CH4 + 2O2 -> CO2 + 2H2O

The mole ratio of methane to water is 1:2. This means that for every 1 mole of methane consumed in the reaction, 2 moles of water are produced. The coefficients provide a quantitative relationship between the reactants and products, allowing us to determine the stoichiometry of the reaction and the corresponding mole ratios.

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Answer:

135.80 g of Ag

Explanation:

\(40gCu *\frac{1mol Cu}{63.546g Cu} *\frac{2mol Ag}{1molCu} *\frac{107.868g Ag}{1mol Ag}\)

~ 135.80 g of Ag

Answer:

here are your answers

Explanation:

There are 1.31 x 1022 bromide ions in 2.00 g of \(MgBr_2\).

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The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


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Answer:

The specific heat of iron is 0.44 \(\frac{J}{g*C}\).

Explanation:

Calorimetry is responsible for measuring the amount of heat generated or lost in certain physical or chemical processes.

There is a direct proportionality relationship between the temperature (Two quantities are directly proportional when there is a constant so that when one of the quantities increases, the other also increases; and the same happens when either of the two decreases.). The constant of proportionality depends on the substance that constitutes the body and its mass, and is the product of the specific heat and the mass of the body.

The amount of heat (Q) necessary to vary the temperature of a mass (m) of a substance is proportional to the change in its temperature (∆T) and to that mass, that is:

Q = c * m * ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case:

Replacing:

1000 J= c*22.5 g* 100 C

Solving:

\(c=\frac{1000 J}{22.5 g*100 C}\)

c= 0.44 \(\frac{J}{g*C}\)

The specific heat of iron is 0.44 \(\frac{J}{g*C}\).

The IUPAC name of the substance CH3CH2CH2, including the cis or trans designation, is not provided in the question. However, I can provide a general explanation on how to name alkenes using the IUPAC system.

To name alkenes, you need to follow a specific set of rules. Here is a step-by-step guide: Identify the longest continuous chain of carbon atoms that contains the double bond. This will determine the parent chain of the alkene.
Number the carbon atoms in the parent chain, starting from the end closest to the double bond. This will help to assign the location of substituents. Determine the cis or trans designation.

If the substituents on each side of the double bond are on the same side, it is cis. If they are on opposite sides, it is trans. Name the substituents attached to the parent chain using their appropriate prefixes (e.g., methyl, ethyl, propyl, etc.). Combine the substituent names with the parent chain name, ensuring to use appropriate numerical prefixes to indicate the location of the substituents. For example, if the substance CH3CH2CH2 had a double bond between the second and third carbon atoms, and both substituents were on the same side, the IUPAC name would be cis-2-butene.

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Answer:

Convert 3.5x1025 molecules of Co, to

moles,

Explanation:

Sodium hydroxide is a strong base means that  NaOH dissociates completely to Na (aq) and OH-(aq)

A strong base is a base that is completely dissociates in solution to yeild the hydroxide ion in high concentration.

Hence, the fact that sodium hydroxide is a strong base means that  NaOH dissociates completely to Na (aq) and OH-(aq) when it dissolves in water.

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a) The sphere emits thermal radiation at a rate of 139.75 Watts.

b) The sphere absorbs thermal radiation at a rate of 37.66 Watts.

c) The sphere's net rate of energy exchange is 102.09 Watts.

To calculate the rates of thermal radiation emission and absorption, we can use the Stefan-Boltzmann law, which states that the rate of thermal radiation emitted or absorbed by an object is proportional to its surface area, temperature, and the Stefan-Boltzmann constant.

a) The rate of thermal radiation emitted by the sphere can be calculated using the formula:

Emitting Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(temperature^4 - environment\ temperature^4\))

Plugging in the given values:

Emitting Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((32.2 + 273.15)^4 - (82.9 + 273.15)^4)\)

Emitting Rate ≈ 139.75 Watts

b) The rate of thermal radiation absorbed by the sphere can be calculated in a similar way but using the environment temperature as the object's temperature:

Absorbing Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(environment\ temperature^4 - temperature^4\))

Plugging in the given values:

Absorbing Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((82.9 + 273.15)^4 - (32.2 + 273.15)^4)\)

Absorbing Rate ≈ 37.66 Watts

c) The net rate of energy exchange is the difference between the emitting rate and the absorbing rate:

Net Rate = Emitting Rate - Absorbing Rate

Net Rate = 139.75 Watts - 37.66 Watts

Net Rate ≈ 102.09 Watts

Therefore, the sphere emits thermal radiation at a rate of 139.75 Watts, absorbs thermal radiation at a rate of 37.66 Watts, and has a net rate of energy exchange of 102.09 Watts.

Note: The units for all the rates are Watts.

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When naming ionic compounds, there are several rules that should be followed. Here are three important rules to remember:

1) Use the name of the cation first

2) Use the correct suffix for the anion

3) Use Roman numerals to indicate the charge of the cation

1) Use the name of the cation first: In an ionic compound, the name of the cation comes first, followed by the name of the anion. For example, in the compound NaCl, the cation is sodium and the anion is chloride.

2) Use the correct suffix for the anion: The suffix for the anion depends on its charge. For example, if the anion has a single negative charge, the suffix is "-ide". So, chloride becomes chloride ion (Cl-) and sulfide becomes sulfide ion (S2-).

3) Use Roman numerals to indicate the charge of the cation: If the cation can have multiple charges, the charge must be specified using a Roman numeral in parentheses. For example, iron (III)  chloride (FeCl3) indicates that the iron cation has a +3 charge. The Roman numeral is equal to the charge of the cation.

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what grade is this because apparently i like to know what grade it is before i solve it

A formula for the sensitivity dR/dM  represents the sensitivity of the body's reaction to the medication. It shows how the reaction changes with respect to the dose of the medication, M. The term M*C represents the contribution of the constant C to the sensitivity, while the term \((2M^2)/3\) represents the contribution of the dose M itself.

To find a formula for the sensitivity, dR/dM, let's differentiate the given function R(M) with respect to M.

Step 1: Start with the function \(R(M) = M^2(C/2 - M/3).\)

Step 2: Apply the power rule of differentiation to differentiate M^2. The power rule states that if

\(f(x) = x^n, then f'(x) = n*x^(n-1). \\\)

n this case, n = 2.

\(dR/dM = 2M^(2-1)*(C/2 - M/3).\)

Simplifying, we have:

\(dR/dM = 2M*(C/2 - M/3).\)

Step 3: Distribute the 2M to each term inside the parentheses:

\(dR/dM = M*C - (2M^2)/3.\)

This formula represents the sensitivity of the body's reaction to the medication, dR/dM. It shows how the reaction changes with respect to the dose of the medication, M. The term M*C represents the contribution of the constant C to the sensitivity, while the term \((2M^2)/3\) represents the contribution of the dose M itself.

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the formula for the sensitivity, or the rate of change of the reaction R with respect to the dose M, is

dR/dM = MC - M\(^2^/^3\)

We calculate the derivative of the reaction function R(M) with respect to M.

the reaction function: R(M) = M²(C/2 - M/3)

We will apply  the power rule and the constant multiple rule of differentiation,

dR/dM = d/dM [M²(C/2 - M/3)]

= 2M(C/2 - M/3) + M²(0 - (-1/3))

= 2M(C/2 - M/3) + M\(^2^/^3\)

dR/dM =\(MC - 2M^2^/^3 + M^2^/^3\)

= \(MC - M^2^/^3\)

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A phrase which best defines a covalent bond is: C. Electrons shared between atoms.

A chemical bond can be defined as the forces of attraction that exists between ions, crystals, atoms or molecules of chemical elements and they are typically responsible for the formation of new chemical compounds.  

Hence, a chemical bond is simply a force holding atoms together and binding ions, crystals, or molecules of chemical elements together, in order to form a new chemical compound.

Basically, there are three (3) main types of chemical bonds and these are:

A covalent bond can be defined as a type of bond that typically involves the sharing of electrons between the atoms of a chemical element.

For example, the type of bond formed between two or more carbon atoms is a covalent bond.

In conclusion, a phrase which best defines a covalent bond is electrons shared between atoms.

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A chemical equation is said to be balanced when the number of atoms of each element on both sides of the equation are the same.

According to this question, a reaction occured between ammonia gas and oxygen gas to produce nitrogen gas and water.

Based on the equation, 4 moles of ammonia requires 3 moles of oxygen gas to react.

This means that 3.53 moles of ammonia will require 3.53 × ¾ = 2.65 moles of oxygen gas.

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Answer:

4.5M

Explanation:

Here is why:

Answer:

6000N

Explanation:

Force = Mass x Acceleration

          = 3000 x 2

          = 6000 kg m/s^2 or 6000N

Answer:

\(\boxed {\boxed {\sf 6000 \ Newtons}}\)

Explanation:

We are asked to calculate a net force. According to Newton's Second Law of Motion, force is the product of mass and acceleration.

\(F= m \times a\)

The mass of the car is 3,000 kilograms and the acceleration is 2 meters per second squared.

Substitute the values into the formula.

\(F= 3000 \ kg * 2 \ m/s^2\)

Multiply.

\(F= 6000 \ kg * m/s^2\)

Convert the units.  1 kilogram meter per second squared is equal to 1 Newton. Our answer of 6000 kilogram meters per second squared is equal to 6000 Newtons.

\(F= 6000 \ N\)

The net force required to accelerate a 3,000 kilogram car at 2 meters per second squared is 6000 Newtons.

The answer is B, darling

Hope this helps